Method for providing cement or concrete casks with a protective coating.



UNITED STA'l. ES PATENT OFFICE.

REINHOLD ROSTOCK, F KLOSTERNEUBURG, AUSTRIA-HUNGARY.

METHOD FOR PROVIDING CEMENT 0B C(SNCRETE CASKS WITH A PROTECTIVE COATING.

Specification of Letters Patent.

Original application filed March 11, 1907, Serial in 361,812. Divided and this application filed July 27, 1M7.

' Serial No. 385,894.

To all whom it may concern:

Be it known that I, REINHOLD ROSTOCK,

manufacturer, a subject of the Emperor of Germany, residing at Klosterneuburg, near provements in Methods for Providing Ce ment or Concrete Casks with a Protective Coating,

This invention relates to cement or concrete casks which are provided with an internal coating for the purpose of preventing the contents of the cas coining into contact with the cement or concrete, and being thereby deteriorated.

Internal coatings of resin, varnish and the like have been directly applied to the cement or concrete, but it is found in practice that the coatings so applied are apt to scale ofi, so that the beer or other contents of the cask comes into direct contact with the cement or concrete, thereby deterioratin In order to avoid this difficulty a lining o plas'ter has been first applied and then the protective coating of resin asphalt and the like was aplied. These coatings do not penetrate t e ining sufiicientl and consequently easily scale off, especia ly in the case of mec anical influences, only forming a layer on top of the lining.

According to the present invention the Patented April 14,1908.

lining of plaster, instead of the asphalt or tar coating, may be impregnated with liquefied ozocerite and ceresin. By employing these materials which not only contributes to the protective nature of the coating but augments the adhesion ioduced" between the plaster coating and t e cement of the cask itself, the lining is saturated with an inert substance?" even the protective coating of resin, varnish, or the hke may be dispensed wit Having now particularly described and ascertained the nature of my said invention, and in what manner the same is to be performed, I declare that what I claim is: a The method of lining concrete casks with arotective coating whereby to produce an intimate adhesion between the cask and the coating which consists in appl ing to the surface of the cask a coating 0 plasterimpregnated with ozocerite or ceresin, substantially as described.

In testimony whereof I have aflixed my signature in presence of two Witnesses.

REINHOLD ROSTOOK. to

Witnesses:

AND. OLAUSEN, OTTO HOLLAND. 

